Techniques for Microwave Near-Field Quantum Control of Trapped Ions
Abstract
Microwave near-field quantum control of spin and motional degrees of freedom of 25Mg+ ions can be used to generate two-ion entanglement, as recently demonstrated in Ospelkaus et al. [Nature 476, 181 (2011)]. Here, we describe additional details of the setup and calibration procedures for these experiments. We discuss the design and characteristics of the surface-electrode trap and the microwave system and compare experimental measurements of the microwave near fields with numerical simulations. Additionally, we present a method that utilizes oscillatingmagnetic-field gradients to detect micromotion induced by the ponderomotive radio-frequency potential in linear traps. Finally, we discuss the present limitations of microwave-driven two-ion entangling gates in our system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 2013
- Accession Number
- ADA609014
Entities
People
- C. Ospelkaus
- D. J. Wineland
- D. Leibfried
- J. M. Amini
- Kenton R. Brown
- M. Carsjens
- U. Warring
- Y Colombe
Organizations
- Massachusetts Institute of Technology